EP4121126A1 - Emballage de produit a steriliser et procede de sterilisation - Google Patents
Emballage de produit a steriliser et procede de sterilisationInfo
- Publication number
- EP4121126A1 EP4121126A1 EP21712523.6A EP21712523A EP4121126A1 EP 4121126 A1 EP4121126 A1 EP 4121126A1 EP 21712523 A EP21712523 A EP 21712523A EP 4121126 A1 EP4121126 A1 EP 4121126A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- packaging
- fibers
- layer
- face
- cint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Disinfection or sterilisation of materials or objects, in general; Accessories therefor
- A61L2/16—Disinfection or sterilisation of materials or objects, in general; Accessories therefor using chemical substances
- A61L2/20—Gaseous substances, e.g. vapours
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/10—Apparatus features
- A61L2202/18—Aseptic storing means
Definitions
- the present invention relates to a packaging of a product to be sterilized, in particular a medical device, as well as a process for sterilizing such a product by means of such a packaging in a supercritical medium.
- the patent document US2014 / 0193299 describes a packaging suitable for sterilization in a supercritical medium, this packaging having, on the one hand, a portion / part permeable to supercritical CO 2 and, on the other hand, a portion / part impermeable to moisture.
- this packaging is of a polymeric nature, contact between this object to be sterilized and the part of the packaging permeable to CO 2 can lead to coalescence, fusion or aggregation of the two parts.
- the sterilization packages are placed in contact with each other, coalescence, fusion or aggregation of the packages may occur.
- a problem which the invention proposes to solve is to create packaging which allows the sterilization of products previously packaged and then the conservation of the products thus sterilized in their packaging and this, preferably, by avoiding any coalescence of the products. packaging or said packaging with the products they contain.
- the first object of the solution of the invention to this problem posed is a packaging provided with an opening for introducing a product to be sterilized, said packaging comprising a multilayer film, said film being composed of an outer layer having an outer face and a inner face, the outer face of said outer layer being in contact with an outer medium, an inner layer having an outer face and an inner face, the outer face of said inner layer being intended to be in contact with the object to be sterilize, and an intermediate layer having a first face and a second face, the first face of said intermediate layer being in contact with the inner face of the outer layer, and the second face of said intermediate layer being in contact with the inner face of the inner layer, the outer and inner layers being permeable to CO 2 in the supercritical phase, the intermediate layer being impermeable to air and permeable to CO 2 in the supercritical phase, the intermediate layer (CInt) being a polymeric layer with a glass transition temperature Tg below the operating temperature Top of CO sterilization 2 in the supercritical phase, and the outer (CE) and inner (CI)
- the outer and inner layers are permeable to air;
- the intermediate layer is a polymeric layer with a glass transition temperature Tg for amorphous polymers, or with a melting temperature Tf for semi-crystalline polymers, below the temperature.
- the outer and inner layers comprise polymer fibers having a glass transition temperature Tg for amorphous polymers, or a melting temperature Tf for semi-crystalline polymers, greater than the operating temperature Top of sterilization with CO 2 in the supercritical phase ;
- the outer layer is woven or entangled fibers;
- the inner layer is woven or entangled fibers;
- - the woven or entangled fibers are woven natural and / or synthetic polymeric fibers; woven fibers or entangled are woven synthetic polymeric fibers;
- - the woven synthetic polymeric fibers are fibers of polyethylene terephthalate, of polyethylene oxide or of fibers of L-polylactic acid; the woven synthetic polymeric fibers are polyethylene terephthalate
- the solution of the invention to the aforementioned problem has as a second object a process for sterilizing a product characterized in that it comprises the following steps according to which: a packaging as defined above is provided, said packaging being provided with an opening, and the product to be sterilized; the product to be sterilized is placed in the packaging through the opening and the opening is closed; the packaging comprising the product is placed in a supercritical sterilization chamber; and, after sterilization, the packaging comprising the sterilized product is removed from said enclosure.
- FIG. 2A shows, schematically, the gas exchanges caused when a packaging according to the invention, comprising a product to be sterilized or a sterilized product, is placed in an external ambient medium, namely air;
- FIG. 2B shows, schematically, the exchange of fluids caused when a package according to the invention, comprising a product to be sterilized, is placed in a supercritical medium;
- FIG. 3 represents the variation of the glass transition temperature Tg of polymethyl methacrylate with a molar mass of 500,000 g / mol as a function of the pressure in a supercritical CO 2 medium (Li, 2016);
- FIG. 4 represents the variation of the glass transition temperature Tg of the polystyrene as a function of the pressure in a supercritical CO 2 medium (Yu, 2009).
- the invention relates to a package 1.
- this package 1 is formed of a pocket.
- the pocket is for example of rectangular shape of width 1 and of length L. However, it may be in other shapes, for example in a square, oval or circular shape.
- the pocket is provided with an opening 2, for example the lateral opening shown in FIG. 1.
- This opening 2 makes it possible to introduce a product 3 to be sterilized into the pocket by sliding this product through the opening 2.
- the opening 2 may further allow the product 3 to be removed from the package, unless the product is removed from the package 1 otherwise, for example, by tearing the pouch or cutting off part of it.
- the actions of introducing the product into the packaging and removing it through the opening 2 are shown diagrammatically by a double arrow in FIG. 1.
- the opening 2 is advantageously closed in a substantially impervious manner. gas and consequently to external humidity.
- a sterilized product in the packaging can be preserved and stored in a sterile manner without risk of contamination.
- the opening 2 can be closed and opened by means of a zip system.
- the opening 2, once the product 3 has been introduced, is heat sealed by melting a plastic zone.
- Product 3 is generally an object, namely a solid product having a given three-dimensional shape, or a solid product not having such a given three-dimensional shape, such as a powder.
- the products can be metallic, polymeric, or other products.
- the product is advantageously a medical device or a pharmaceutical product. However, they may be products for different uses, which require sterilization or for which sterilization is beneficial or desirable.
- the pocket is formed from a multilayer film. As shown in FIGS. 2A and 2B, this film is composed of an outer layer CE, an inner layer CI and an intermediate layer CInt. Each CE, CI and CInt layer can be broken down into several sublayers.
- the outer layer CE has an outer face CEe and an inner face CEi.
- the external face CEe of the external layer CE is in contact with an external medium Me, for example the ambient gas medium or a medium composed of carbon dioxide CO 2 in the supercritical phase. It is generally in contact with other outer layers CE of other packages when a plurality of packages 1 are placed in contact with each other.
- the inner layer CI has an outer face Cle and an inner face Cli.
- the outer face Key of the inner layer CI is intended to be in contact with the object 3 to be sterilized.
- the intermediate layer CInt has a first face CInt1 and a second face CInt2.
- the first face CInt1 of the intermediate layer CInt is in contact with the inner face CEi of the outer layer CE.
- the second face CInt2 of said intermediate layer CInt is in contact with the internal face C1i of the internal layer CI.
- the outer CE and inner CI layers are permeable to CO 2 in the supercritical phase. They may be permeable to air, under ambient conditions, namely at pressure and at ambient temperature, the ambient pressure being of the order of 1 atm, the ambient temperature being between, for example, 18 ° C and 24 ° C. ° C, in particular of the order of 21 ° C.
- the outer and inner layers are, for example, layers of woven or entangled fibers. These fibers are capable of forming a network of meshes which have openings through which supercritical CO 2 and air can pass, in order to pass through the layers.
- the outer CE and inner CI layers comprise woven natural fibers and / or synthetic polymeric fibers.
- the woven fibers are woven synthetic polymeric fibers.
- the nature of the outer CE and inner CI layers is the same or different. In particular, the nature of the woven fibers of the outer CE and inner CI layers is identical or different.
- the outer CE and inner CI layers are preferably composed of polymers having properties similar to PET (polyethylene terephthalate) exhibiting negligible swelling and low sorption of CO 2 .
- Polymers such as polyethylene oxide, L-polylactic acid, polysulfone, polyimide, or a mixture thereof, can also be used.
- polymers such as polyethylene oxide or L-polylactic acid can be used.
- polysulfone or polyimide are used.
- the woven synthetic polymeric fibers are polyethylene terephthalate, polyethylene oxide or L-polylactic acid fibers.
- Other examples of woven synthetic polymeric fibers are polysulfone fibers or polyimide fibers.
- polysulfone fibers can be woven with polyimide fibers to form the outer CE layer, the inner CI layer, or both.
- polymeric fibers Synthetic woven fabrics are polyethylene terephthalate fibers.
- the outer CE and inner CI layers and, more particularly, the woven polymers which form these layers have a glass transition temperature Tg (for the amorphous polymers) or a melting temperature Tf (for the semi-transparent polymers). crystalline) above the operating temperature Top for sterilization with CO 2 in the supercritical phase and the operating pressure Pop for sterilization.
- Tg glass transition temperature
- Tf for the semi-transparent polymers
- the woven polymers, amorphous or semi-crystalline, which form the outer CE and inner CI layers have a glass transition temperature Tg greater than the operating temperature Top for sterilization with CO 2 in the supercritical phase.
- Table 1 below gives the glass transition temperatures Tg of polymers suitable for the outer CE and inner CI layers according to the invention.
- the CInt intermediate layer is impermeable to air under ambient conditions, namely at ambient temperature and pressure, but permeable to CO 2 in the supercritical phase. It is advantageously a polymeric, in particular synthetic, layer comprising acrylate or methacrylate polymers.
- Polymers, or copolymers, of the family of polyethers, polyesters, polyolefins, polystyrenes or polylactic acids can also be used.
- the intermediate layer CInt is a polymeric layer, in particular synthetic, comprising PEG 1500 (polyethylene glycol of which the average molar mass is 1500 g / mol), PEG 4000 (polyethylene glycol with an average molar mass of 4000 g / mol), polyvinyl ethyl ether, polycaprolactone, PGA (polyglycolic acid), PMA (polyacrylate methyl), polyethylacrylate, polypropylacrylate, PBA (polybutylacrylate), PVA (polyvinyl acetate), L-PLA (L polylactic acid), D-PLA (D-polylactic acid) , PS (polystyrene), PMMA (polymethyl methacrylate), polymethyl methacrylate, polym butyl methacrylate, polyethylene, polyethylene ethylene, polypropylene or a mixture thereof.
- PEG 1500 polyethylene glycol of which the average molar mass is 1500 g / mol
- PURASORB PL 18 is a GMP (Good Manufacturing Practices) homopolymer of L-polylactic acid with an intrinsic viscosity midpoint of 1.8 dl / g.
- PURASORB PD 24 is a GMP grade homopolymer of D-polylactic acid with an intrinsic viscosity midpoint of 2.4 dl / g.
- PURASORB PDL 20 is a GMP grade copolymer of DL-polylactic acid having an intrinsic viscosity midpoint of 2.0 dl / g.
- PURASORB PLD 9655 is a GMP grade copolymer of L- and D-polylactic acids, with a molar ratio of 96/04, with an intrinsic viscosity midpoint of 5.5 dl / g.
- PURASORB PLDL 7028 is a GMP grade copolymer of L-polylactic and DL-polylactic acids, with a molar ratio of 70/30, with an intrinsic viscosity midpoint of 2.8 dl / g.
- PURASORB PLG 1017 is a GMP grade copolymer of L-polylactic acid and polyglycolic acid, with a molar ratio of 10/90, with an intrinsic viscosity midpoint of 1.7 dl / g.
- PURASORB PLC 7015 is a GMP grade copolymer of L-polylactic acid and ⁇ -caprolactone, with a molar ratio of 70/30, whose intrinsic viscosity midpoint is 1.5 dl / g.
- PURASORB PDLG 5010 is a GMP grade copolymer of DL-polylactic acid and polyglycolic acid, with a molar ratio of 50/50, with an intrinsic viscosity midpoint of 1.0 dl / g.
- the intermediate layer CInt forms a solid layer of the polymer (s).
- these polymers are preferably used for their advantageous plasticization properties in a supercritical medium.
- the polymers forming the intermediate layer are chosen so that their glass transition temperature Tg is lower than the sterilization top operating temperature so that there is plasticization of the intermediate layer during the sterilization process.
- the polymers forming the intermediate layer are chosen so that their glass transition temperature Tg is lower. at the operating temperature Top of sterilization with CO 2 in the supercritical phase, that is to say at the operating pressure Pop.
- the polymers forming the intermediate layer are chosen so that their glass transition temperature Tg (for the amorphous polymers) or their melting temperature Tf (for the semi-crystalline polymers) is lower than the operating temperature Top of sterilization.
- sterilization must take place under pressure and temperature conditions for which the intermediate layer CInt is plasticized.
- a polymer to be plastic with 00. 0 . « of supercritical CO 2 , there must be sorption, in other words diffusion, of the CO 2 within the polymer. This is possible when the free volume of the polymer is dynamic.
- Tg glass transition temperature
- Tf for the semi-crystalline polymers
- the polymers, amorphous or semi-crystalline, forming the intermediate layer CInt have a glass transition temperature Tg lower than the operating temperature Top of sterilization.
- the polymers forming the intermediate layer are semi-crystalline, have a glass transition temperature Tg lower than the sterilization Top operating temperature but have a melting temperature Tf greater than the sterilization Top operating temperature.
- the polymers forming the intermediate layer are semi-crystalline, and have a glass transition temperature Tg and a melting temperature Tf below the sterilization top operating temperature.
- the polymers forming the intermediate layer are amorphous and have a glass transition temperature Tg lower than the sterilization top operating temperature so that there is plasticization of the intermediate layer during the sterilization process .
- This plasticization allows the CO 2 to pass through the intermediate layer CInt, under the operating conditions of sterilization.
- the package is a package of the type which generally packages capsules or syringes. Such packages are then formed from a rigid support for the capsules, for example a metal film, said rigid support carrying the capsules.
- the capsules, placed on the support are protected by a multilayer film according to the invention.
- the packaging according to the invention comprises a base part, for example rigid plastic, and the film according to the invention is a cover which covers this base part, and can be opened, for release the product from the packaging.
- the packaging 1 according to the invention can be used in the manner described in the method below.
- a packaging 1 as described above is provided, as well as the product 3 to be sterilized.
- the product 3 is placed in the package 1 through the opening 2.
- the opening 2 is open, the product is inserted into the package 1, then the opening 2 is closed, advantageously so waterproof, for example by sealing or by means of a zip.
- the aforementioned steps are carried out in the ambient environment, for example in the open air. They are repeated so as to obtain a plurality of packages 1, each package 1 comprising a product 3.
- the same package comprises a plurality of products 3.
- the intermediate layer CInt of the multilayer film constituting the packaging is impermeable to air.
- the packaging, comprising the product 3, the opening 2 of which is closed, can thus be preserved and stored without undergoing additional contamination from the outside, or humidification.
- the packages 1, in which the products 3 have been inserted, are then placed in a specific enclosure intended for the sterilization of the product 3 by the action of CO 2 in the supercritical phase.
- This is an autoclave or a sterilization chamber. In this chamber, the sterilization step is carried out.
- the CO 2 is introduced until the operating operating pressure Pop is reached, at the operating operating temperature set Top.
- the pressurization rate is controlled.
- the pressurization rate is set as a function of the nature of the polymer chosen for the intermediate layer and is preferably between 0.01 and 10 MPa / min.
- Sterilization can be done in batch mode or in continuous mode, with a continuous flow of CO 2 for a predetermined time.
- the sterilization step is completed, the sterilization enclosure is depressurized at a controlled rate of depressurization and at constant temperature.
- the sterilization operating conditions are chosen according to the nature of the organisms to be inactivated.
- the Top operating temperature is above 31 ° C, which is the critical temperature for CO 2 , and below 70 ° C. A high temperature is preferred for the inactivation of the most resistant forms, the spore-forming forms.
- the operating pressure Pop is greater than 7.38 MPa, which is the critical pressure of CO 2 , and less than 30 MPa. High pressure will be preferred for the inactivation of the sporulated forms.
- the intermediate layer CInt is permeable to CO 2 because the material constituting this layer, namely, for example, acrylate or methacrylate polymers , is plasticized by CO 2 .
- the CO 2 enters the packaging, and product 3 is sterilized, the CO 2 entering the interior of the packaging 1 through the multilayer film, namely, successively, through the outer layer CE , of the intermediate layer CInt, and of the inner layer CI.
- the exchanges of CO 2 in the supercritical phase take place in both directions, as is shown schematically by the double arrow in FIG. 2B.
- the outer layer CE of the packaging being for example woven or entangled, with a glass transition temperature Tg greater than the Top temperature under the operating conditions, no coalescence of the material constituting said layers CE and CI of the packaging 1 deposited in the enclosure does not occur. product, or fusion and / or aggregation of said packages 1 with each other. Since the inner layer CI of the packaging is woven and the constituent polymer is not plasticized by supercritical CO 2 , the coalescence of the film forming said packaging with the product 3 does not occur, even if the product 3 is, in all or part, polymeric.
- the packaging is left for a sufficient time in the enclosure comprising CO 2 in the supercritical phase for the CO 2 to diffuse into the packaging 1 and allow sterilization of the product 3. This time is for example at least 5 min.
- the sterilization enclosure is depressurized at a controlled rate of depressurization and at constant temperature.
- the packaging comprising the sterilized product 3 is removed from the enclosure.
- the packaging 1, comprising the sterilized product 3, is therefore returned to the external environment Me, in the air.
- the intermediate layer CInt is impermeable to air. It therefore does not have any openings which would allow air to diffuse through said layer. The air therefore does not enter the packaging 1 and the product 3 it contains can be stored and remains sterile.
- the packaging according to the invention thus makes it possible to sterilize or to reduce the biological / bacterial load in a supercritical medium of medical devices in particular or of any packaged product or object.
- the invention described here relates to the design of a multilayer packaging composed of one or more polymeric films between two CE and CI layers made of natural and / or woven polymeric fibers.
- These CE and CI layers allow the diffusion of the supercritical fluid under pressure even if the materials components of natural and / or polymeric woven fibers are completely impermeable to supercritical CO 2.
- the CO 2 is transported through the openings contained in the weaving of these two outer CE and inner CI layers.
- the intermediate layer CInt is a solid polymeric layer, that is to say non-perforated, which can be or can be plasticized by supercritical CO 2.
- the diffusion of the supercritical fluid through the multilayer film CE, CInt, CI of the packaging 1 therefore allows the inactivation of the biological material under pressure. Contamination or humidification after depressurization will be made impossible by the sealing of the packaging matrix at ambient pressure, the sealing being ensured by the intermediate polymeric layer CInt, permeable only under pressure.
- the advantage of the two outer layers CE and CI, permeable to supercritical CO 2 is to avoid that, during the pressure treatment, the bags do not coalesce or aggregate with each other or with the objects to be sterilized if the latter are polymeric in nature.
- these packaging are particularly effective when the materials, the constituents (polymers), are judiciously chosen, for example formed of fibers of polyethylene terephthalate, of polyethylene oxide or of L-polylactic acid fibers, see polyimide or polysulfone, for the CI and CE layers and acrylate or methacrylate polymers for the CInt layer. They advantageously retain in particular the same mechanical properties before and after treatment in a supercritical medium. These materials are advantageously chosen by taking into account their average molar mass, the average degree of polymerization and their glass transition temperature Tg (for amorphous polymers) or else, where appropriate, their melting point Tm (for semi-transparent polymers). crystalline).
- the weight average molecular weight Mw is 47,800
- the number average molecular weight Mn is 36,400
- the PDI polydispersity index is 1.31
- the glass transition temperature Tg is 117 ° C.
- Mw 216000
- Mn 141300
- PDI 1.53
- Tg 124 ° C.
- the average molecular weight Mw is between 25,000 and 700,000.
- Such packaging can allow the development of supercritical sterilization processes in industry.
- it is important to specify that the equipment making it possible to sterilize in a supercritical medium is the same as the supercritical cleaning machines, with which certain producers of medical devices are already equipped.
- the invention makes it possible to carry out sterilization in a supercritical medium of a product or of a packaged object.
- This packaging is particularly suitable for medical devices or polymeric objects.
- supercritical fluids, and in particular supercritical CO 2 are used to reduce the biological load of products in various sectors of industry.
- the currently commercially available packaging cannot be used under the pressure conditions involved to inactivate the spore-forming forms in particular.
- the glass transition temperature Tg is measured by any method known to those skilled in the art, such as, for example, using a calorimeter.
- the phase changes as a function of the temperature can then be observed.
- the glass transition temperature Tg is measured, for example, using a pressure-resistant calorimeter, that is to say equipped with a high pressure cell.
- CO 2 is introduced into the high pressure cell, and the temperature varies according to a predefined temperature ramp. The phase modifications are thus observed, making it possible to determine the glass transition temperature Tg, and where appropriate, the melting temperature Tf, of a given polymer, under CO 2 pressure.
- Table 4 Each of the examples presented in Table 4 above describes the sterilization conditions, in terms of temperature, pressure and duration, of a product packaged in a package according to the invention.
- the packaging is described according to the polymers forming the different CE, CI and CInt layers.
- the right column of the table specifies the strain targeted by sterilization as well as the efficiency of inactivation of this strain, under the sterilization conditions specific to each example, according to the data in the literature.
- Example 1 describes a package of which the outer CE and inner CI layers are identical or different, formed of woven fibers of polysulfone, woven fibers of polyimide, or polyimide and polysulfone fibers woven together.
- the intermediate layer CInt is formed from one or more solid layers of PMA, PBA or PVA.
- the packaged product is sterilized, for 15 min, at 38 ° C., under a pressure of 74 bar of COa. Under these conditions, it is possible to inactivate B. subtilis, P. aeruginosa with an efficiency, expressed in logio No / N, greater than 7.
- Example 2 describes a package in which the outer CE and inner CI layers are the same or different, formed of woven polysulfone fibers, woven polyimide fibers, or polyimide and polysulfone fibers woven together.
- the intermediate layer CInt is formed from one or more solid layers of PEG 1500, PEG 4000, L-PLA, PS or PMMA. After introducing a product into the packaging, the packaged product is sterilized, for 6 hours, at 60 ° C., under a pressure of 150 bar of CO 2 . Under these conditions, it is possible to completely inactivate B. subtilis endospores.
- Example 3 describes a package in which the outer CE and inner CI layers are the same or different, formed of woven polysulfone fibers, woven polyimide fibers, or polyimide and polysulfone fibers woven together.
- the intermediate layer CInt is formed from one or more solid layers of PEG 1500, PMA, PBA or PVA. After introducing a product into the packaging, the packaged product is sterilized, for 14 min, at 35 ° C., under a pressure of 210 bar of CO 2 . In these conditions, it is possible to completely inactivate Listeria monocytogenes.
- Example 4 describes a package in which the outer CE and inner CI layers are the same or different, formed of woven polysulfone fibers, woven polyimide fibers, or polyimide and polysulfone fibers woven together.
- the intermediate layer CInt is formed from one or more solid layers of PEG 1500, PEG 4000 or L-PLA. After introducing a product into the packaging, the packaged product is sterilized, for 2 hours, at 65 ° C., under a pressure of 100 bar of COa. Under these conditions, it is possible to completely inactivate Micrococcus luteus.
- Example 5 describes a package in which the outer CE and inner CI layers are the same or different, formed of woven polysulfone fibers, woven polyimide fibers, or polyimide and polysulfone fibers woven together.
- the intermediate layer CInt is formed from one or more solid layers of PEG 1500, PMA, PBA or PVA. After introducing a product into the packaging, the packaged product is sterilized, for 30 min, at 45 ° C., under a pressure of 75 bar of CO 2 . Under these conditions, it is possible to completely inactivate Saccharomyces cerevisiae.
- Example 6 describes a package in which the outer CE and inner CI layers are the same or different, formed of woven polysulfone fibers, woven polyimide fibers, or polyimide and polysulfone fibers woven together.
- the intermediate layer CInt is formed from one or more solid layers of PMA, PBA or PVA. After introducing a product into the packaging, the packaged product is sterilized, for 120 min, at 35 ° C., under a pressure of 137 bar of COa. Under these conditions, it is possible to inactivate Salmonella typhimurium with an efficiency, expressed in logio No / N, greater than 8.
- Example 7 describes a package in which the outer CE and inner CI layers are the same or different, formed of woven polysulfone fibers, woven polyimide fibers, or polyimide and polysulfone fibers woven together.
- the intermediate layer CInt is formed from one or more solid layers of PMA, PBA or PVA. After introducing a product into the packaging, the packaged product is sterilized, for 15 min, at 35 ° C., under a pressure of 210 bar of CO 2 . Under these conditions, it is possible to completely inactivate Leuconostoc dextran ⁇ cum.
- Example 8 describes a package in which the outer CE and inner CI layers are the same or different, formed of woven polysulfone fibers, woven polyimide fibers, or polyimide and polysulfone fibers woven together.
- the intermediate layer CInt is formed from one or more solid layers of PMA, PBA or PVA. After introducing a product into the packaging, the packaged product is sterilized, for 30 min, at 35 ° C., under a pressure of 250 bar of CO 2 . Under these conditions, it is possible to completely inactivate Lactobacillus brevis.
- Example 9 describes a package of which the outer CE and inner CI layers are the same or different, formed of woven polysulfone fibers, woven fibers of polyimide, or polyimide and polysulfone fibers woven together.
- the intermediate layer CInt is formed from one or more solid layers of PMA, PBA or PVA.
- the packaged product is sterilized, for 30 min, at 40 ° C., under a pressure of 75 bar of COa. Under these conditions, it is possible to inactivate Escherichia coli with an efficiency, expressed in logio No / N, greater than 6.
- Example 10 describes a packaging whose outer CE and inner CI layers are identical or different, formed of fibers.
- the intermediate layer CInt is formed from one or more solid layers of PMA, PBA or PVA.
- Bertucco A • 9 Inactivation of sorne food microorganisms with supercritical carbon dioxide in a semi-continuous flow System, in: A. Bertucc (Ed.), Proceedings 5th ConfInter on Supercritical Fluids an their Applications 1999.
- Yu L. Liu H., Chen, L., Thermal behaviors of polystyrene plasticized with compressed carbon dioxide in a sealed System. Polymer Engineering & Science (49/9) 2009. Yu X • 9 Yi B • t Wang X • t Xie Z •, Correlation between the glass transition temperatures and multipole moments for polymers, Chemical Physics (332/1) 2007.
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Packages (AREA)
- Wrappers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2002759A FR3108259B1 (fr) | 2020-03-20 | 2020-03-20 | Emballage de produit a steriliser et procede de sterilisation |
| PCT/EP2021/057051 WO2021186015A1 (fr) | 2020-03-20 | 2021-03-19 | Emballage de produit a steriliser et procede de sterilisation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4121126A1 true EP4121126A1 (fr) | 2023-01-25 |
Family
ID=71111571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21712523.6A Pending EP4121126A1 (fr) | 2020-03-20 | 2021-03-19 | Emballage de produit a steriliser et procede de sterilisation |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4121126A1 (fr) |
| FR (1) | FR3108259B1 (fr) |
| WO (1) | WO2021186015A1 (fr) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BRPI0412702A (pt) * | 2003-07-18 | 2006-09-26 | Tetra Laval Holdings & Finance | laminado para acondicionamento com barreira de gás, recipiente para acondicionamento, e, método de manufatura de um laminado para acondiconamento |
| DE102005027811A1 (de) * | 2005-06-15 | 2006-12-21 | Wipak Walsrode Gmbh & Co. Kg | Verfahren zum Haltbarmachen von Waren in einer Kunststoff-Folienverpackung |
| US20140193299A1 (en) | 2009-11-05 | 2014-07-10 | Lifecell Corporation | Systems and Methods for Sterilization |
| US20140259328A1 (en) * | 2013-03-15 | 2014-09-18 | W. L. Gore & Associates, Inc. | Moisture-insensitive thermally protective materials and garments made therefrom |
-
2020
- 2020-03-20 FR FR2002759A patent/FR3108259B1/fr active Active
-
2021
- 2021-03-19 EP EP21712523.6A patent/EP4121126A1/fr active Pending
- 2021-03-19 WO PCT/EP2021/057051 patent/WO2021186015A1/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| AHMAD ZULKIFLI ET AL: "Glass Transition Temperature - an overview | ScienceDirect Topics", 1 January 2016 (2016-01-01), XP093122802, Retrieved from the Internet <URL:https://www.sciencedirect.com/topics/materials-science/glass-transition-temperature> [retrieved on 20240123] * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3108259B1 (fr) | 2022-03-04 |
| FR3108259A1 (fr) | 2021-09-24 |
| WO2021186015A1 (fr) | 2021-09-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7649274B2 (ja) | 凍結乾燥 | |
| CA2831636C (fr) | Sterilisation d'instruments medicaux pour l'injection et/ou l'instillation | |
| EP2598412B1 (fr) | Article de conditionnement jetable | |
| US7040485B2 (en) | Method and apparatus for packaging a drug-device combination product | |
| CN107074387B (zh) | 自身灭菌包装及其制造和使用方法 | |
| US20090236253A1 (en) | Sterilized package, method for its production, and its use in medicine | |
| KR20190127933A (ko) | 살균 방법 | |
| FR2813796A1 (fr) | Procede de desinfection ou de sterilisation d'un materiau par chauffage confine sous pression de vapeur de l'eau et des radicaux naturellement absorbes sur le dit materiau et dispositif associe | |
| CN112762661A (zh) | 用于对产品进行冻干的方法 | |
| EP1501569A1 (fr) | Emballage destine a etre utilise pour transporter des objets steriles ou a steriliser | |
| EP4121126A1 (fr) | Emballage de produit a steriliser et procede de sterilisation | |
| EP3321369B1 (fr) | Méthode de validation d'un procédé de stérilisation comportant deux contaminations successives | |
| WO2008009865A1 (fr) | Polymere fluore a activite antibacterienne | |
| US10258702B2 (en) | Method for manufacturing water-absorbent carrier | |
| JPH04136066A (ja) | 包装材 | |
| US10092667B2 (en) | High efficiency polymeric sterilant container assembly | |
| EP1625859A1 (fr) | Procédé de préparation d'un emballage contenant substances stérilisées, et emballage contenant pénicilline stérilisée | |
| JPS60198157A (ja) | 滅菌及び無菌的保存方法 | |
| JP2005517531A (ja) | 物品を下処理する方法 | |
| CH640417A5 (en) | Method for sterilisation by means of a gas plasma |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20220516 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
| 17Q | First examination report despatched |
Effective date: 20240126 |